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Wholesale High Temperature Refractory Cement Ca70 Ca80 High Alumina Fireproof Cement For High Temperature Furnace
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Wholesale High Temperature Refractory Cement Ca70 Ca80 High Alumina Fireproof Cement For High Temperature Furnace
| MOQ: | 1 tons |
| Price: | 200 usd - 700usd |
| Standard Packaging: | Bag + Ton bag |
| Delivery Period: | 7-10 days |
| Payment Method: | L/C,D/P,T/T,Western Union |
| Supply Capacity: | 1000 tons/month |
Detail Information
Place of Origin
CHINA
Brand Name
LEADSUN
Certification
ISO CE
Model Number
Refractory Cement
Document
Refractoriness:
1350-1850C
Size:
Powder
Package:
Bag+ Ton Bag
Al2O3:
50-80%
Color:
Grey
Type:
CA50 A600 A700 A900 CA70 CA80
Highlight:
high temperature refractory cement
,fireproof cement for furnace
,high alumina castable cement
Product Description
Wholesale High Temperature Refractory Cement CA70 CA80 High Alumina Fireproof Cement
High Alumina Cement—often referred to as bauxite cement—is a specialized hydraulic binder made by grinding clinker that contains approximately 50% or more alumina (Al₂O₃). Its chief mineral phase is calcium aluminate, which sets it apart from Portland cement, whose chemistry revolves around calcium silicates. This distinct composition endows the material with outstanding characteristics, making it frequently called refractory cement.
One of its primary roles lies in the production of low-cement, high-alumina castables—advanced refractory concretes widely used to construct, reline, or repair high-temperature industrial furnaces and kilns across sectors such as metallurgy, ceramics, and waste incineration. These castables deliver superior thermal insulation, strong resistance to acidic slag attack, and sustained mechanical strength under intense heat.
Beyond high-temperature applications, High Alumina Cement also proves invaluable in time-critical engineering works, thanks to its rapid setting behavior and impressive early-age strength. It is therefore heavily relied upon in emergency repairs of pressurized defense structures, swift road restoration, and specialized rehabilitation tasks where minimizing downtime is essential.
Technical Specifications
| Item | CA-50 | CA-60 | CA-70 | CA-80 |
|---|---|---|---|---|
| Chemical Component | ||||
| Al₂O₃ /% | 50-60 | 60-68 | 68-77 | ≥77 |
| SiO₂ /% | ≤8.0 | ≤5.0 | ≤1.0 | ≤0.5 |
| Fe₂O₃ /% | ≤2.5 | ≤2.0 | ≤0.7 | 0.5 |
| R₂O (Na₂O+0.658K₂O) /% | ≤0.4 | ≤0.4 | ≤0.4 | ≤0.4 |
| Rupture Strength MPa | ||||
| 1 day | 5.5 | 2.5 | 5.0 | 4.0 |
| 3 days | 6.5 | 5.0 | 6.0 | 5.0 |
| 28 days | / | 10.0 | / | / |
| Compressive Strength MPa | ||||
| 1 day | 40 | 20 | 30 | 25 |
| 3 days | 50 | 45 | 40 | 30 |
| 28 days | / | 80 | / | / |
| Setting Time Min | ||||
| Initial time | ≥30 | ≥60 | ≥30 | ≥30 |
| Final time | ≤360 | ≤1080 | ≤360 | ≤360 |
Why Choose Our Products?
- Optimized Workability: Features stable physical performance, low water requirement, and rapid, complete wet hydration for easier mixing and placement.
- Excellent Durability: Exhibits good resistance to corrosion, high wear resistance, and high thermal shock stability.
- Superior Bonding & Integrity: Forms a strong, integral bond with furnace linings and aggregates, ensuring monolithic structural integrity.
- Rapid-Hardening & High Early Strength: Achieves high compressive and rupture strength within 1-3 days, accelerating project timeline.
Primary Applications
- Furnaces of metallurgy industry, heat treatment furnace
- Furnace of incineration of garbage, recirculating fluidized bed furnace
- Furnaces of chemical industry and construction industry
Product Gallery
Frequently Asked Questions (FAQ)
Q1: How do I select the right insulation grade for my furnace?
A: Selection depends on the maximum operating temperature, thermal cycling frequency, and chemical atmosphere. Please provide your design specifications for a tailored recommendation.
Q2: Do these materials contain hazardous substances?
A: We offer a range of bio-soluble (low-bio-persistence) fibers that meet international health and safety standards for handling and usage.
Q3: Can you provide customized shapes?
A: Yes, we provide vacuum-formed custom shapes, blocks, and modules based on your CAD drawings to ensure a perfect fit for your equipment.
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